diff --git a/setup.py b/setup.py
index 2dcdd241..48360f81 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@ def getVersionNumber():
     project_urls=PROJECT_URLS,
     python_requires=">3.7",
     install_requires=[
-        "gemmi>=0.5.5, <=0.5.6",
+        "gemmi>=0.5.5, <=0.5.7",
         "pandas>=1.2.0, <=1.4.4",
         "numpy",
         "scipy",